Product display shelf extender



FIG. 1 is a perspective view of a product display shelf extender showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof, with the right side view being a mirror-image;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a product display shelf extender, as shown and described. 